The Upjohn Co.

Other

LeRoy E Johnson

Alexander D Argoudelis

Lester A Dolak

Novel antibiotic U-60, 394 producible in a fermentation under controlled conditions using a biologically pure culture of the microorganism Streptomyces woolenses, Dietz and Li sp.n., NRRL 12113. This antibiotic is strongly active against various Gram-positive bacteria, for example, Staphylococcus aureus and Streptococcus hemolyticus. It is also strongly active against the Gram-negative bacterium Streptococcus pneumoniae. Thus, antibiotic U-60, 394 can be used in various environments to eradicate or control such bacteria.

Composition of matter and process

Microbiological process for preparing the known antibiotics, antibiotic A-396-1 and L-dihydrophenylalanine, by use of the new microorganism Streptomyces lemensis, NRRL 8170 using controlled fermentation conditions. These antibiotics are active against Gram-positive and Gram-negative bacteria. Accordingly, they can be used in various environments to eradicate or control such bacteria.

Process for recovering antibiotics U-50,147 and U-51,738

Microbiological process for preparing the known antibiotics, antibiotic A-396-1 also known as U-50,147 and L-dihydrophenylalanine also known as U-51,748, by use of the new microorganism Streptomyces lemensis, NRRL 8170 using controlled fermentation conditions. These antibiotics are active against Gram-positive and Gram-negative bacteria. Accordingly, they can be used in various environments to eradicate or control such bacteria.

Process for producing antibiotics U-50,147 and U-51,738

A grain drill having a plurality of closely spaced seeding units is modified to change the pattern of seed flow through one of the seeding units so that when the plants emerge, the one row will be visibly different from the other rows. The visibly different row can then be used as a marker for weed control spraying or the like.

Seeder with seed flow modification for marking seeded fields

A grain drill having a plurality of closely spaced seeding units is modified to change the pattern of seed flow through one of the seeding units cyclically within the length of a row, so that when the plants emerge, the one row will be visibly different from the other rows. The visibly different row can then be used as a marker for weed control spraying or the like.

Growing community of inventors

Kalamazoo, MI, United States of America

LeRoy E Johnson